Point Filtering Strategy for Flow Generation

[chan515x]

Hi,
Thanks for your great work on this project!

I have a question regarding the point filtering strategy for flow generation. During training, you filter out points that do not move beyond a certain distance to focus on moving points. However, at inference time, how do you identify the moving points? Since you only predict flows for the moving points during training, could it negatively impact the overall flow generation process if the input points are not filtered at inference time?

Looking forward to your response!